Universal use: These acupressure insoles are suitable for both men and women and can be used on a variety of shoes, such as sneakers, casual shoes, leather shoes, boots, etc. The comfortable magnetic massage insoles are suitable for a variety of leisure activities, hiking, mountaineering, ball sports, running, and daily activities. Cut-to-size design: You will receive magnetic insoles in sizes 35-40, which are cut-to-size and can be freely cut to the size that suits you. Suitable for various activities: The insoles can absorb vibration and pressure from your feet and help relax muscles. The comfortable magnetic insoles are perfect for hiking, running, ball sports, cycling, and various regular exercises to relieve pain and improve blood circulation.